Self-learning methods for automatically generating a summary of a document, knowledge extraction and contextual mapping

ABSTRACT

Advance Machine Learning or Unsupervised Machine Learning Techniques are provided that relate to Self-learning processes by which a machine generates a sensible automated summary, extracts knowledge, and extracts contextually related Topics along with the justification that explains “why they are related” automatically without any human intervention or guidance (backed ontology&#39;s) during the process. Such processes also relate to generating a 360-Degree Contextual Result (360-DCR) using Auto-summary, Knowledge Extraction and Contextual Mapping.

CROSS-REFERENCE TO THE RELATED APPLICATIONS

This application is a divisional application of U.S. patent applicationSer. No. 13/575,478 filed Jul. 26, 2012, which is a U.S. National StageApplication claiming the benefit of prior filed InternationalApplication No. PCT/IB2011/050409 filed Jan. 31, 2011, in which theInternational Application claims a priority date of Feb. 3, 2010 basedon prior filed Indian Application No. 267/CHE/2010, the entire contentsof which are incorporated herein by reference.

TECHNICAL FIELD

Embodiments of the present disclosure relate to Advance Machine Learningor Unsupervised Machine Learning Techniques. More particularly,embodiments relate to Self-learning process by which a machine generatesa sensible automated summary, extracts knowledge, and extractscontextually related Topics along with the justification that explains“why they are related” automatically without any human intervention orguidance (backed ontology's) during the process.

BACKGROUND

No Search engine today brings the justification/description to “Why thisrelation?”, while representing contextual Topics or Search Refinementsfor the user query during the process of Search. Users wonder, why orhow is this Topic Related?, Also, Knowledge representation is the key tothe next generation of search as suppose to mere information retrievalbasis user queries. This algorithm brings in a 360-degree contextualknowledge representation apart from being capable of answering specificquestions.

Currently, most of the search engines are mere keyword based informationextraction basis relevance algorithms. There is a huge demand foroverall or 360 degree contextual knowledge representation in Searchindustry, which is the future of search. In a nutshell we have and arein process to build a revelation of 3^(rd) & 4^(th) generation searchengine.

In light of the foregoing discussion, there is a need for a method tosolve the above mentioned shortcomings in the search industry.

SUMMARY

The shortcomings of the prior art are overcome and additional advantagesare provided through the provision of a method and a system as describedin the description.

The present disclosure solves the limitations of existing techniques byproviding an Advance Machine Learning or Unsupervised Machine LearningTechniques, which uses a mathematical approach to identify and extractknowledge concepts in a set of given, documents (Unstructured Data).This approach does not necessarily need training data to help makedecisions on building the 360-degree contextual map but rather has theability to statistically learn from the data itself. Given a set ofnatural documents or web-pages or anything similar, the algorithm iselegant enough to organize the knowledge concepts automatically withoutany human guidance during the process.

In one embodiment, the technology disclosed in the present disclosureprovide an method/process that is elegant enough to sensibly build anAuto-Summary of a given document completely automatically(self-learning) using the important words identified from the document.

In one embodiment, the technology disclosed in the present disclosure isa novel and inventive Text-Analytics framework, which extracts Knowledgecompletely automatically from Information Indexed or Processed(self-learning). The solution proposed in the present disclosure bringsin a 360-degree contextual results; which is highly effective fromusability perspective.

In one embodiment, the present technology or process can be used inSearch Engines, both Web Search and Enterprise Search. It can also beused in Online Business (AdWords, AdSense). Summarization of Documents,WebPages etc. . . . more importantly LPeSr brings 360-contextual mappingof knowledge and contextual clusters.

The foregoing summary is illustrative only and is not intended to be inany way limiting. In addition to the illustrative aspects, embodiments,and features described above, further aspects, embodiments, and featureswill become apparent by reference to the drawings and the followingdetailed description.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

The novel features and characteristic of the disclosure are set forth inthe appended claims. The embodiments of the disclosure itself, however,as well as a preferred mode of use, further objectives and advantagesthereof, will best be understood by reference to the following detaileddescription of an illustrative embodiment when read in conjunction withthe accompanying drawings. One or more embodiments are now described, byway of example only, with reference to the accompanying drawings whereinlike reference numerals represent like elements and in which:

FIG. 1 is a flowchart illustrating a methodology to generate anautomated summary of the document and to extract knowledge concepts fromthe set of given documents, in accordance with an exemplary embodiment.

FIG. 2 is a flowchart illustrating a methodology to generate anautomated summary of the document, in accordance with an exemplaryembodiment.

FIG. 3 is a flowchart illustrating a methodology to generateKnowledge-Extraction (KE) basis Text-Analytics of given sum or set ofdocuments, in accordance with an exemplary embodiment.

FIG. 4 is a flowchart illustrating a methodology to generate 360-DegreeContextual Mapping (360-DCM) Cluster, in accordance with an exemplaryembodiment.

FIG. 5 is a flowchart illustrating a methodology to generate 360-DegreeContextual Results (360-DCR), in accordance with an exemplaryembodiment.

FIG. 6 is an exemplary snap shot of the web page highlighting autosummary created by present technology for given documents and/orWebPages.

FIG. 7 is an exemplary snap shot of the web page highlightingKnowledge-Extraction (KE) created by present technology for givendocuments and/or WebPages.

FIG. 8 is an exemplary snap shot of the web page displaying explodedview of the contextual related topic link that gives information on whyand how the topics selected are contextually related.

FIG. 9 is an exemplary snap shot of the web page displaying 360-DegreeContextual Results (360-DCR) for the selected Topic, in accordance withan exemplary embodiment.

The figures depict embodiments of the disclosure for purposes ofillustration only. One skilled in the art will readily recognize fromthe following description that alternative embodiments of the structuresand methods illustrated herein may be employed without departing fromthe principles of the disclosure described herein.

DETAILED DESCRIPTION

The foregoing has broadly outlined the features and technical advantagesof the present disclosure in order that the detailed description of thedisclosure that follows may be better understood. Additional featuresand advantages of the disclosure will be described hereinafter whichform the subject of the claims of the disclosure. It should beappreciated by those skilled in the art that the conception and specificembodiment disclosed may be readily utilized as a basis for modifying ordesigning other structures for carrying out the same purposes of thepresent disclosure. It should also be realized by those skilled in theart that such equivalent constructions do not depart from the spirit andscope of the disclosure as set forth in the appended claims. The novelfeatures which are believed to be characteristic of the disclosure, bothas to its organization and method of operation, together with furtherobjects and advantages will be better understood from the followingdescription when considered in connection with the accompanying figures.It is to be expressly understood, however, that each of the figures isprovided for the purpose of illustration and description only and is notintended as a definition of the limits of the present disclosure.

Exemplary embodiments of the present disclosure relate to Latent PrécisExtraction and Synecdoche Representation (LPeSr) which is aself-learning methodology/process designed to extract important wordsautomatically from a given document or a web page. It then builds anAutomated Machine generated summary that is not just mere chopping-offor truncating paragraphs but actually makes it a real sensible summaryensuring that important sentences are very much captured, hence the word“Precis” or “a Summary”. Basis the first level of process the methodthen maps the overall information extracted into “Knowledge Entities”basis a linguistic framework built on Natural Language Processing orNLP. During the final stage the method brings in the description to thecontextually related clusters explaining “Why this relation?” . . . Inshort a “360-degree contextual representation of Knowledge” or“360-degree contextual map” is achieved as suppose to mere Informationretrieval, hence the word “Synecdoche” (Part of something that is usedto refer to the whole thing).

Aforesaid features are explained in detail herein below with the help ofexamples for better understanding. However, these examples should not beconstrued as the limitation on the scope of the present technology.

Referring now to FIG. 1, which illustrates a high-level snap-shot ofsteps used in generating automated summary of the document and toextract knowledge concepts from the set of given documents. The basicstep starts with processing the documents or web-pages usingcorresponding parsers to extract the textual information. The textual orcontent within the document is the input to the algorithm. The instantmethodology then processes the content of each document to extractimportant words within it automatically. A standard procedure of findingthe frequency of each word in the document can be used to extract thewords of high frequency instance after filtering the word articles fromthe documents. the present technology make use of an elegant techniquethat is much advanced & efficient from eminence perspective. These wordsmake real sense from practical standpoint to be used in generation ofautomated summary of the document and to extract knowledge concepts fromthe set of given documents.

As seen from the FIG. 1 it is obvious that the end result of the instanttechnology disclosed in the present disclosure is to generate sensibleauto-summary of the document and to extract key concepts or knowledgeconcepts basis the summarization process. Therefore, the instanttechnology gets into the details of core aspects of the process ofauto-summarization and extraction of knowledge concepts.

Let's quickly look into the technique used as a base for extraction ofImportant-Words (IW) with High-Frequency Occurrence. In one embodiment,identify the words that go together first, example “Saudi Arabia” is aone word although made up of two words. It is termed as “SaudiArabia”=l(2), this means two words making sense as one word. Thereforein a given document the method finds such words that go together fromthe incremental order of their occurrences, which means first find thehighest order like l(5), then l(4), then l(3) . . . the general way todefine this is “m(n)”, where “n” is number of words in the group to makeone word as a whole. “m” is a constant as it is a representation of theword as a whole.

In one embodiment, the procedure of extracting High-Frequency words ofthe document, which is applied, would be as follows:

-   -   a. m(n), m(n−1), m(n−2), m(n−3) . . . m(n−p)    -   b. Given the above “n” could be any positive integer;        typically/mostly value of “n” is in the range 5 to 4 in        practical scenarios. “n-p” is always 2.

For example, if the document content is something like:

“The Kingdom of Saudi Arabia, commonly known as Saudi Arabia is thelargest Arab country of the Middle East. It is bordered by Jordan andIraq on the north and northeast, Kuwait, Qatar and the United ArabEmirates on the east, Oman on the southeast, and Yemen on the south. Itis also connected to Bahrain by the King Fand Causeway . . . ”

To keep it simple for explanation purpose, value of “n” is considered as“2” (value of p=0), therefore the words that go together are identifiedby the following procedure:

Consider the first two words in the string i.e. “The Kingdom”, now since“The” is a word article, this is skipped, the next word “Kingdom of”,again “of” is a word article, this combination is skipped too “ofSaudi”, same case . . . now the next combination “Saudi Arabia” seems tomake sense but for a machine does not make sense yet but since there isno word article or punctuation marks this is recorded and assuming thisto be a valid word the method processes other words similarly until itfinds the same combination again, if it found then “Saudi Arabia” makesit into a valid word of combination 2. Also, it is obvious that theprobability of such combination depends upon at least one co-occurrenceof such word.

Where ever such combination is found in the contents of the document,the method would extract such a word and record its frequency ofoccurrence and replace it with a void value or null. Having mentionedthis, let's now assume that the initial value of n=4, then first four(4) combinations of the words are considered and proceed to compare withthe consecutive combination ex: “The Kingdom of Saudi” & “Kingdom ofSaudi Arabia” are compared . . . and so on. Once the document reachesits end, the value of n becomes n−1, which is 3. The process is repeatedon the same document now keeping in mind the void or null value too thatmight have been replaced for any possible valid combination of 4 groupsof words. This whole process is repeated until value of p=0.

Now, the only left over words is obviously single words, they areprocessed to find the highest frequency words. The combination ofGroup(4), Group(3), Group(2) and (1) words gives a set of valid wordsthat make the document, in other words these words are important to thedocument.

Therefore, in a practical scenario if a given document has about 1500 to2000 words and given a very comprehensive list to eliminate “commonwords” or simply call “Word-Articles” (is, it, the, do, should . . . )etc. . . . the words in the document get reduced to more than 50%. Ahuge list of these common words for English and also other languages isfreely available (we use one such list and fine tune if there are anymissed out words).

In one embodiment, these common words are filtered only during the laststage of the process, i.e. during the process of single-words. Initiallyfor Group (4), Group (3), Group (2), we very much use this common wordlist to figure out “Word-Groups” (WG) as explained earlier. Once, themethod is through the procedure of extracting WG's and Single Words,they typically come down to 15 to 20 words for a document size of about2000 words. Now, these words are used in a controlled way to develop asensible automated summary for the given document.

In one embodiment, the following Hypothesis is made basis which thelogic for developing an automated summary & knowledge extraction for agiven document is judged by the machine/methodology.

-   -   1. Every sensible document has a meaning, message that it        illustrates to its readers.    -   2. There are a set of words that are important and around which        “common words” or “word-articles” attach to make a sentence that        describe these IW. Refer to the paragraph again:

“The Kingdom of Saudi Arabia, commonly known as Saudi Arabia is thelargest Arab country of the Middle East. It is bordered by Jordan andIraq on the north and northeast, Kuwait, Qatar and the United ArabEmirates on the east, Oman on the southeast, and Yemen on the south. Itis also connected to Bahrain by the King Fand Causeway . . . ”

The Highlighted bold words are common words. Now, if we analyze theabove paragraph point 2 becomes clear.

-   -   3. The important words and common words together form sentences        . . . typically sentences and paragraphs are the building blocks        of a document.    -   4. Each sentence is separated by a “period” (.) symbol.    -   5. Therefore, every sentence that contains the IW's becomes        important.    -   6. Also, every other sentence that is close to this particular        sentence also can be assumed strongly to be important.    -   7. Therefore, we just need a technique to elegantly extract        these important sentences and join them to make a very sensible        summary.

In one embodiment, the step by step process used in generation ofAuto-Summary (Précis) is explained herein in detail. Firstly, theImportant Words (IW's) are extracted using the technique explainedhereinabove for extracting the IW's to process the next steps togenerate an auto-summary. The next step is to list the order of the IW'sextracted in the order of highest WG's. The given document is split intosentences, using the period symbol as the mark for the split. All ofthese sentences are stored in a storage medium in the sequential order.For example storage medium includes but is not limiting to an array,database and any proper media. Let's call this “Array of Sentences” as“AS”. For each IW starting in the order of highest WG's, every sentencein AS is analyzed to find if said IW is present. If the IW is foundthen, that particular sentence is extracted; let's call it “S1”. Nowthis sentence is removed from the list of AS. Therefore, AS becomes(AS-S1). The corresponding IW is also removed from the list of IW's. Forexample, if there are 10 IW's (IW1, IW2, IW3, . . . IW10), we now wouldhave 9 IW's (IW2, IW3, IW4, . . . IW10). The reason why we might want toremove IW after a match is found is to avoid repetitions or redundanciesduring final stage of auto-summary creation.

In one embodiment, above said process is repeated for all otherconsecutive IW. As a result of which for say about 10 IW's the processwould have extracted about 10 sentences that matched (S1, S2, and S3 . .. S10). The combination of these would form a very sensible summary ofthe given document in the real world, each sentence however isappropriately separated by consecutive periods (about 4 to 5) to give aobvious feeling that these sentences are snippets of the document thatare joined. Therefore, resultant auto-summary (SY)→(S1, S2, S3 . . .S10) is a summation of Important-Sentences (IS's)=Auto-Summary of thedocument as illustrated in FIG. 2. FIG. 6 is an exemplary snap shot ofthe web page highlighting auto summary created by present technology forgiven documents and/or WebPages.

In another embodiment, the present disclosure provides details aboutKnowledge-Extraction (KE) basis Text-Analytics of given sum or set ofdocuments. Basis the hypothesis mentioned earlier, we now look in to theprocess/methodology used for extracting knowledge from given set ofdocuments.

It is understood that for a given n number of documents, each documentwould have corresponding IW's and Auto-SummarY (SY) for each document.Firstly, define Topic to each document basis IW's and combination offilename & Title name. This is done by comparing each IW in a documentwith its filename & Title name, if any of the IW's matches than that isdefined as a Topic; else the IW with highest-frequency is defined as theTopic. Sometimes, Topic can be just Title name if it is consistent inthe given documents (if we manually analyze and are content with theTitle to be Topic, then we simply use Title to be Topic (in most of thecases this is true but involves manual intervention).

Therefore, now we have for each Document (D1), its corresponding Topic(T1), Important-Words (IWs) and its corresponding auto-summary (SY1) andmore importantly the Important-Sentences (IS's) (that were extracted tobuild auto-summary). i.e. D1=T1, IWs, SY1, IS's. Therefore, for givenset of n number of documents we would have their corresponding Topic's,Auto-Summaries, Important-Words and Important-Sentences.

Now analyze the data statistically to extract Knowledge-Clusters andcorresponding Topic-Clusters that are contextually related. For thegiven data set of n number of documents, the list of IW's and theircorresponding Important-Sentences (IS's) and Topics (T's) are extractedin an order (may be an array, database etc. . . . any proper media).Now, each IW and its corresponding sentence is hashed to generate ahash-code (H), this will be an integer number. Associate hash-code aswell with IW's in the list in the same order. In one embodiment, hashingis primarily used to eliminate any redundancies during KE process, asthe same hash code is generated for same sentences, duplicates can beremoved. I.e. IW+IS=hash code. No two hash codes in the list would besame after filtering duplicates. Where hashing is used to onlyfacilitate removal of redundancies, however any other technique can alsobe used as an alternative.

Once, the duplicates are eliminated, the IS's & Topic's (T's) areGrouped or Clustered in the list based on IW's. Therefore, for each IW,there would be “m” number of Important-Sentences (IS's) & “m” number ofTopic's that might have been extracted. The Topic's for each IW clustercan be defined as contextually related. Basis the hypothesis mentionedearlier, if the sentence containing the IW is important then obviouslythe Topic's of the relative IS's from other documents for the same IWshall be related contextually. Now, we have two clusters for a givenIW—“Contextual-Topical Clusters” and “Knowledge-Clusters”. Aforesaidprocess is clearly illustrated in FIG. 3. In another embodiment, it ispossible to Group basis Topic instead of grouping basis IW, this dependson the scenario & requirement that one is trying to address. FIG. 7 isan exemplary snap shot of the web page highlighting Knowledge-Extraction(KE) created by present technology for given documents and/or WebPages.

360-Degree Contextual Mapping (Synecdoche)

The basic philosophy of the present disclosure is to bring “Knowledge assuppose to mere Information” during the process of retrieval of results.Although, the process is very laborious and involves huge computationbut the end results are simply amazing. The next generation of search isdefinitely going to be in this direction. Let's understand how this isachieved.

Note that basis the techniques explained earlier we have certainattributes associated with each document after the first two levels ofprocessing, which are Topic (T), Important-Words (IW's), Auto-Summary(SY) and Important-Sentences (IS's). To achieve 360-DegreeContextual-Mapping (360-DCM) the Topics (T's) & the Data or Content (C)of the document itself plays a vital role. There is a certain way inwhich this is achieved, please refer to the pointers below that explainsthe same.

For a given set of documents say “n”, it has corresponding Topics (Tn)and Content (Cn) associated with that. Index these documents or ratherprocess them in a very specific way. While running an Index on thedocuments, two separate values or fields are stored in the index whichis Topic of the document, and Document Content. During the Indexingprocess, the Topic that is identified for each document is stored in astorage medium in a predetermined order. For example, storage mediumincludes but is not limiting to an array, database and any proper media.Let's call this “Topical-List” or “TL”. There is a possibility that theTL may contain duplicates, filter these duplicates results in a listwith non-redundant Topics. For each Topic in the TL, search index is hitfor one Topic at a time and extracted predefined set of results. Thepredefined threshold of number of results depends upon the size of theData or Index size. Typically, the first 50 to 150 results could beextracted. For each of the result, the corresponding Topic and Contentis extracted. These are stored in a predetermined order. Let's call this“Result-List” or “RL”.

Let's assume that the Topic from TL that hit the Index is “Obama”, weget the corresponding RL. Now, there are two things that are analyzed.Firstly, if the RL has Topics that match each other (Example: if theyare at least two occurrence of say Topic: “Hillary”, then “Hillary”, isextracted to be related), they are extracted to be related to the Topic“Obama”. Secondly, the corresponding Document Content of the Topics isanalyzed to find the sentences that list the word “Obama” (The sametechnique is used here to split the sentences to find this importantword as the method did in the process of auto-summary creation). ReferFIG. 4. Preferably, those sentences that contain both the word “Obama”and the Topic of the document are selected. For example, if the Topic ofthe document from RL being processed is say “Hillary”, then the sentenceextracted would be like say “Hillary Diane Rodham Clinton is the 67thUnited States Secretary of State, serving in the administration ofPresident Barack Obama”. This kind of structure would justify “Why thisRelationship?” or “How is this Topic Related?” functionality.

In one embodiment, aforesaid process is repeated until all the Topics inthe TL are exhausted. The resultant “Related Topics” along with theirrespective sentences that justify the relationships are stored in acluster. For example cluster includes but is not limiting to an array,database and any proper media. This is represented as the “360-DegreeContextual-Map” (360-DCM) of a given Topic that describes “Part ofsomething that is used to refer to the whole thing”, which is nothingbut Synecdoche Representation.

This functionality is extremely helpful during the process of search;the user gets the required information along with contextually relatedTopics with the explanation of “Why or How are these Related?”; As anexample, consider if the user-query is “Heart Attack”, then apart fromregular results the query hits the 360-DCM and if there is a cluster forthe Topic “Heart Attack” then the Related Topics, which it might returnmay be Thrombolytic Therapy, Coronary artery spasm, Atherosclerosis,Unstable angina. Apart from this if the user clicks on the link “Why orHow are these Related?”>>, then the following information would bedisplayed:

Thrombolytic Therapy

Those who die from heart attacks generally die within 1 hour from theinitial onset of symptoms and sometimes before they get to the hospital.For a person having an acute heart attack, tPA works by dissolving amajor clot quickly. The clot is most likely blocking one of the coronaryarteries that normally allows blood and oxygen get to the heart muscle.

health.allrefer.com/health/thrombolytic-therapy . . .

Coronary Artery Spasm

Coronary artery spasm is a temporary, sudden narrowing of one of thecoronary arteries (the arteries that supply blood to the heart). In manypeople, coronary artery spasm may occur without any other heart riskfactors (such as smoking, diabetes, high blood pressure, and highcholesterol). If the spasm lasts long enough, it may even cause a heartattack. Treatment: The goal of treatment is to control chest pain andprevent a heart attack.

www.nlm.nih.gov/medlineplus/ency/ . . .

Atherosclerosis

If the coronary arteries become narrow, blood flow to the heart can slowdown or stop. This can cause chest pain (stable angina), shortness ofbreath, heart attack, and other symptoms. This is a common cause ofheart attack and stroke. If the clot moves into an artery in the heart,lungs, or brain, it can cause a stroke, heart attack, or pulmonaryembolism.

www.nlm.nih.gov/medlineplus/ency/ . . .

Unstable Angina

Unstable angina is a condition in which your heart doesn't get enoughblood flow and oxygen. It is a prelude to a heart attack. This causesarteries to become less flexible and narrow, which interrupts blood flowto the heart, causing chest pain. The chest pain: Occurs without cause(for example, it wakes you up from sleep) Lasts longer than 15-20minutes Responds poorly to a medicine called nitroglycerin May occuralong with a drop in blood pressure or significant shortness of breathPeople with unstable angina are at increased risk of having a heartattack.

www.nlm.nih.gov/medlineplus/ency/ . . .

An exemplary snap shot of the web page displaying exploded view of thecontextual related topic link that gives information on why and how thetopics selected are contextually related is illustrated in FIG. 8.

Summing-Up all the Features to Display 360-Degree Contextual Results

Generations of Auto-Summary (Précis), Text-Analytics, KnowledgeExtraction and 360-Degree Contextual Mapping (Synecdoche) techniques areexplained in detail above. Using all the above steps, the processanalyze and index the data in such a way that it will facilitate theretrieval of search results that will portray “360-Degree ContextualResults” of the search query as illustrated in FIG. 5.

As seen from FIG. 5, all the processes are collated together to bring inthe 360-DCR, the following is the way in which it is achieved:

For the given data, for each document corresponding Topic (T),Important-Words (IW's), Important-Sentences (IS's), and Auto-summary(SY) is generated as explained earlier. Auto-Summary is stored as afield value during indexing along with corresponding Topic and Contentof the document, this we call it the Master-Index, this Index is usedfor displaying search results. Since, auto-summary is a field value;every result will have a summary of the entire document, which will helpthe user to have a quick overview of each result without actually havingthe user to visit the content page. While processing Master-Index theTopical-List is extracted. TL later hits the Master-Index to extract360-DCM clusters as explained earlier. Knowledge is extracted into KEclusters as explained earlier.

For a given user query the process analyzes it to see if such a Topicexists in the TL, if so the corresponding cluster from the 360-DCMcluster returns related Topics along with the relationship map. TheMaster-Index returns search results along with auto-summary for eachresult. The KE cluster is analyzed to see if such an Important-Word (IW)exits, if so relevant Knowledge that is gathered about such asearch-query is highlighted. Therefore, in a nutshell the solution is 3fold, the end-users get Information along with sensible summary of thedocument, they get Knowledge pertaining to their query and last but notleast they also get contextually related Topics listed with therelationship map, which in-itself is a separate result set that isnothing but an advance level of brining in Query-Expansion based resultsas a part of contextual results.

Hence, for the given query the system brings in information about italong with relevant Knowledge and Contextually related topics and theirrelationship map, which gives the user more than just mere results. Anexemplary snap shot of the web page displaying 360-Degree ContextualResults (360-DCR) for the selected Topic, in accordance with anexemplary embodiment is illustrated in FIG. 9.

The present disclosure is not to be limited in terms of the particularembodiments described in this application, which are intended asillustrations of various aspects. Many modifications and variations canbe made without departing from its spirit and scope, as will be apparentto those skilled in the art. Functionally equivalent methods and deviceswithin the scope of the disclosure, in addition to those enumeratedherein, will be apparent to those skilled in the art from the foregoingdescriptions. Such modifications and variations are intended to fallwithin the scope of the appended claims. The present disclosure is to belimited only by the terms of the appended claims, along with the fullscope of equivalents to which such claims are entitled. It is also to beunderstood that the terminology used herein is for the purpose ofdescribing particular embodiments only, and is not intended to belimiting.

With respect to the use of substantially any plural and/or singularterms herein, those having skill in the art can translate from theplural to the singular and/or from the singular to the plural as isappropriate to the context and/or application. The varioussingular/plural permutations may be expressly set forth herein for sakeof clarity.

In addition, where features or aspects of the disclosure are describedin terms of Markush groups, those skilled in the art will recognize thatthe disclosure is also thereby described in terms of any individualmember or subgroup of members of the Markush group.

While various aspects and embodiments have been disclosed herein, otheraspects and embodiments will be apparent to those skilled in the art.The various aspects and embodiments disclosed herein are for purposes ofillustration and are not intended to be limiting, with the true scopeand spirit being indicated by the following claims.

We claim:
 1. A self learning method for automatically generating aSummary of a document without human intervention, said method comprisingacts of: extracting Important Words (IW) of the document based onincremental order of their occurrence; listing the order of the IW'sextracted in the order of highest Word Group (WG), wherein the highestword group is combination of maximum number of words that go together asone word; for each IW's starting in the order of highest word group,analyzing every sentence in the document to determine presence of the IWand thereafter extracting all the sentences having corresponding IW asimportant sentences (IS) after eliminating redundancies to generate theauto-summary for the document.
 2. The method as claimed in claim 1,wherein identifying WG and IW comprises using word article andpunctuation marks from the document.
 3. A self learning method forautomatically extracting knowledge of a given set of documents withouthuman intervention, said method comprising acts of extracting ImportantWords (IW) and their corresponding Important Sentences (IS), and Topics(T) of the documents in a predetermined order; eliminating duplicates ofeach extracted IW and its corresponding sentences; and clustering theIS's and Topic's (T) in the list based on the extracted IW's as“Contextual-Topical Cluster” and “Knowledge-cluster” to extractknowledge and related contextual Topics from the set of given documents.4. The method as claimed in claim 3, wherein defining topic to eachdocuments is done by comparing each IW in the document with its filename and Title name, if any of the IW's matches than that is defined asa Topic.
 5. The method as claimed in claim 4, wherein the IW's withhighest frequency occurrences in the document is defined as the topic ofthe document.
 6. The method as claimed in claim 3, wherein eliminatingthe duplicates of each extracted IW and its corresponding sentencesusing Hashing technique.
 7. A self-learning method for automaticallydisplaying 360-degree Contextual Search Results without humanintervention, said method comprising acts of: generating Topic (T),Important-Words (IW), Important Sentences (IS) and Auto-Summary (SY) fora given document; storing the generated Auto-Summary as a field valueduring indexing along with corresponding Topic and Content of thedocument in Master-Index; extracting Topic List by processing theMaster-Index and thereafter 360-degree Contextual Mapping (360-DCM) into360-DCM cluster; extracting Knowledge from the document into KnowledgeExtraction (KE) cluster; and analyzing user query to identify Topic inthe TL and corresponding 360-DCM cluster to return related Topics alongwith the relationship map, wherein the Master-index returns searchresults along with auto-summary for each result; and the KE clusterreturns relevant knowledge for the search query to display 360-degreeContextual Search Results.
 8. The method as claimed in claim 7, whereinthe generating auto-summary comprises acts of: extracting ImportantWords (IW) of the document from incremental order of their occurrence;listing the order of the IW's extracted in the order of highest WordGroup (WG); splitting the document into sentences and storing thesentences in a sequential order as Array of Sentences (AS); for eachIW's starting in the order of highest word group, analyzing everysentence in the AS to determine presence of the IW and thereafterextracting all the sentences having IW as important sentences (IS) toeliminate redundancies; and removing the extracted sentences from the ASand corresponding IW from the list of IW's to generate the auto-summaryfor the document.
 9. The method as claimed in claim 7, wherein theextracting Knowledge from the document into Knowledge Extraction (KE)cluster comprises acts of extracting Important Words (IW) and theircorresponding Important Sentences (IS), and Topics (T) of the documentsin a predetermined order; eliminating duplicates of each extracted IWand its corresponding sentences; and clustering the IS's and Topic's (T)in the list based on the extracted IW's or the Topic as“Contextual-Topical Cluster” and “Knowledge-cluster” to extractknowledge and related contextual Topics from the set of given documents.10. The method as claimed in claim 7, wherein generating 360-degreeContextual Mapping comprises acts of indexing one or more documents;storing the topics identified for each documents in a predeterminedorder as Topical List (TL) during the indexing process and removingduplicates topics from the TL; extracting predefined number of resultsfor each Topic in the TL by searching one Topic at a time in the index;extracting corresponding Topic and Content for each of the extractedresult and storing the extracted Topic and Content in a predeterminedorder as Result-List (RL) in a temporary storage; analyzing the RL foreach topic to extract Related Topic; analyzing corresponding documentContent of the Topic to extract “why they are related” phrases from thecontent; and clustering the resultant “Related Topics” along with theirrespective sentences to generate 360-degree Contextual Mapping.